Configure Spring REST Controller without DispatcherServlet

Question

I want to setup Rest Controller using Spring without DispatcherServlet.

I have worked with Rest Controller with Spring MVC's dispatcher servlet but I am not sure how to setup controllers without it.

Below is the code that I tried:

@Controller
@RequestMapping("/somemapping")
public class SomeControllerImpl implements SomeController {

    @Autowired
    private SomeService service;

    @Override
    @ResponseBody
    @RequestMapping(value = "/", method = RequestMethod.GET)
    public List<DO> getAllDO() {
        return service.getAllDO();
    }

}

When I tried accessing above controller using "localhost:8080/appName/somemapping/" it gave 404 error.

Edit: I have Websphere application server. If that has something to do with my issue.

The `DispatcherServlet` *is the component* that connects the servlet container to the Spring controllers. This is like asking how to set up your car's wheels without a transmission. — chrylis -cautiouslyoptimistic-, May 02 '19 at 05:18
@chrylis So you are saying that it would not be possible to use rest controllers without DispatcherServlet? — damndemon, May 02 '19 at 12:58
Correct. (Or WebFlux, but that's an equivalent Spring piece for the reactive model.) — chrylis -cautiouslyoptimistic-, May 02 '19 at 21:34

Abhijeet · Answer 1 · 2019-05-02T05:05:30.903

0

You can access the above controller's GET method using http://localhost:8080/somemapping/

Instead of giving @RequestMapping(value = "/"), you can also give value as value=""

edited May 02 '19 at 05:05

answered May 02 '19 at 04:58

Abhijeet

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Thanks! I tried it but now it gave an error "servlet class was found, but a resource injection failure has occurred". – damndemon May 02 '19 at 08:15
The complete error is "servlet class was found, but a resource injection failure has occurred java.lang.IllegalStateException: java.lang.NoSuchMethodException: org.example.controller.SomeController.()". – damndemon May 02 '19 at 08:23
@damndemon share the whole stack trace. – Abhijeet May 03 '19 at 04:41
I think the issue is with the constructor of your controller. Are you implementing parameterized constructor without default constructor? If yes, Add a default constructor – Abhijeet May 03 '19 at 05:22

Configure Spring REST Controller without DispatcherServlet

1 Answers1